<template>
	<div>
		<!--面包屑-->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }"> 首页</el-breadcrumb-item>
			<el-breadcrumb-item>数据统计</el-breadcrumb-item>
			<el-breadcrumb-item>数据报表</el-breadcrumb-item>
		</el-breadcrumb>

		<!--卡片视图-->
		<el-card>
			<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
			<div id="main" style="width: 600px; height: 400px"></div>
		</el-card>
	</div>
</template>

<script>
// 1、导入echarts
// import echarts from 'echarts'
import _ from 'lodash'
const echarts = require('echarts')
export default {
	data() {
		return {
			option: {
				title: {
					text: 'ECharts 入门示例',
				},
				tooltip: {},
				legend: {
					data: ['销量'],
				},
				xAxis: {
					data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子'],
				},
				yAxis: {},
				series: [
					{
						name: '销量',
						type: 'bar',
						data: [5, 20, 36, 10, 10, 20],
					},
				],
			},
		}
	},

	created() {},
	// 生命周期函数：此时页面上的元素，已经被渲染完毕
	async mounted() {
		// 基于准备好的dom，初始化echarts实例
		const myChart = echarts.init(document.getElementById('main'))
    // 发送数据请求
		const { data: res } = await this.$http.get('reports/type/1')
		if (res.meta.status !== 200) {
			return this.$message.error('获取折线图失败')
		}
		// 数据合并
		const result = _.merge(res.data, this.option)
		// 使用刚指定的配置项和数据显示图表。
		myChart.setOption(result)
	},
	methods: {},
}
</script>

<style lang="less" scoped></style>
